American Racing VN470/VN511/VN502 “Salt Flat”
(Aftermarket)
Not sure when this was first made but it would work for anything from the 50s up to the 70s. They still make it.
15", 16", 17", 18", 20"
VN511 ^
VN470 ^
VN502 ^
On cars
And here’s a cool close up of the center cap, although it’s from the “special” VN471 variant with no actual design differences except that it says American Racing on it in black text instead of just being indented:
Personally I’d prefer the center caps of the 470/511 with the secondary color being the chrome trim on the 502, but anything’s fine. The wingnut center cap could prove useful for vintage race cars.